373
FNCA52 TJSJ 160730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST SAT MAY 16 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-162000-
SOUTHEAST COASTAL PLAINS-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 20
TEMP (24H TREND) 90 (+3) 73 (-1) 90
RH % (24H TREND) 52 (-6) 91 (+4) 51
WIND 20FT/EARLY(MPH) E 16 E 12 E 16
WIND 20FT/LATE(MPH) E 16 E 12 E 16
MIXING HGT(FT-AGL/MSL)4520 4770
TRANSPORT WND (MPH) E 17 E 17
VENT RATE (KT-FT) 67800 71550
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-162000-
SOUTHERN HILLS-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 10 40
TEMP (24H TREND) 87 (+4) 69 (-3) 87
RH % (24H TREND) 62 (-6) 99 (+5) 61
WIND 20FT/EARLY(MPH) E 12 E 10 E 12
WIND 20FT/LATE(MPH) SE 12 E 12 E 12
MIXING HGT(FT-AGL/MSL)5330 5350
TRANSPORT WND (MPH) E 16 E 17
VENT RATE (KT-FT) 74620 80250
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-162000-
NORTH COASTAL PLAINS-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 30 40
TEMP (24H TREND) 90 (0) 72 (-2) 90
RH % (24H TREND) 61 (-1) 99 (+3) 59
WIND 20FT/EARLY(MPH) E 13 E 14 E 14
WIND 20FT/LATE(MPH) E 17 E 11 E 19
MIXING HGT(FT-AGL/MSL)4910 5300
TRANSPORT WND (MPH) SE 14 E 16
VENT RATE (KT-FT) 58920 74200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-162000-
NORTHERN HILLS-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 20 60
TEMP (24H TREND) 89 (+1) 70 (-1) 89
RH % (24H TREND) 65 (+4) 100 (+2) 61
WIND 20FT/EARLY(MPH) E 11 E 12 E 12
WIND 20FT/LATE(MPH) E 13 E 9 E 17
MIXING HGT(FT-AGL/MSL)6100 6250
TRANSPORT WND (MPH) SE 12 E 14
VENT RATE (KT-FT) 61000 75000
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-162000-
WEST COAST-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 20 60
TEMP (24H TREND) 91 (+1) 73 (0) 91
RH % (24H TREND) 61 (-1) 97 (+1) 59
WIND 20FT/EARLY(MPH) E 13 E 12 E 16
WIND 20FT/LATE(MPH) E 13 E 11 E 16
MIXING HGT(FT-AGL/MSL)4730 4710
TRANSPORT WND (MPH) E 10 E 13
VENT RATE (KT-FT) 42570 51810
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-162000-
EASTERN INTERIOR-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 50 40
TEMP (24H TREND) 88 (+2) 71 (-2) 87
RH % (24H TREND) 64 (-2) 99 (+2) 63
WIND 20FT/EARLY(MPH) SE 14 E 12 E 13
WIND 20FT/LATE(MPH) E 13 E 13 E 13
MIXING HGT(FT-AGL/MSL)5370 5670
TRANSPORT WND (MPH) SE 16 E 16
VENT RATE (KT-FT) 75180 79380
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-162000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 50 40
TEMP (24H TREND) 83 (+3) 69 (-2) 83
RH % (24H TREND) 70 (-6) 100 (+1) 70
WIND 20FT/EARLY(MPH) SE 12 E 10 E 12
WIND 20FT/LATE(MPH) E 12 E 11 E 12
MIXING HGT(FT-AGL/MSL)4150 4320
TRANSPORT WND (MPH) SE 17 E 17
VENT RATE (KT-FT) 62250 64800
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-162000-
CENTRAL MOUNTAIN RANGE-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 10 60
TEMP (24H TREND) 86 (+4) 67 (-2) 86
RH % (24H TREND) 65 (-3) 100 (+3) 62
WIND 20FT/EARLY(MPH) E 9 E 6 E 10
WIND 20FT/LATE(MPH) SE 9 E 8 E 10
MIXING HGT(FT-AGL/MSL)6640 6610
TRANSPORT WND (MPH) SE 12 E 14
VENT RATE (KT-FT) 66400 79320
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-162000-
CAYEY MOUNTAIN RANGE-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 40
TEMP (24H TREND) 83 (+3) 69 (-2) 83
RH % (24H TREND) 68 (-6) 100 (+1) 70
WIND 20FT/EARLY(MPH) E 11 E 9 E 11
WIND 20FT/LATE(MPH) E 11 E 10 E 11
MIXING HGT(FT-AGL/MSL)4680 4910
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 70200 68740
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-162000-
VIEQUES-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 40 40
TEMP (24H TREND) 88 (+1) 75 (-1) 88
RH % (24H TREND) 64 (-2) 94 (+2) 63
WIND 20FT/EARLY(MPH) E 17 E 16 E 18
WIND 20FT/LATE(MPH) E 13 E 17 E 16
MIXING HGT(FT-AGL/MSL)3340 3280
TRANSPORT WND (MPH) E 18 E 20
VENT RATE (KT-FT) 53440 55760
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-162000-
CULEBRA-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 30
TEMP (24H TREND) 89 (+2) 76 (-2) 89
RH % (24H TREND) 61 (-6) 93 (+3) 61
WIND 20FT/EARLY(MPH) E 17 E 16 E 18
WIND 20FT/LATE(MPH) E 14 E 17 E 16
MIXING HGT(FT-AGL/MSL)3410 3300
TRANSPORT WND (MPH) E 20 E 21
VENT RATE (KT-FT) 57970 59400
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-162000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 10 30
TEMP (24H TREND) 92 (+3) 73 (-2) 92
RH % (24H TREND) 50 (-5) 91 (+2) 49
WIND 20FT/EARLY(MPH) E 18 E 18 E 21
WIND 20FT/LATE(MPH) SE 19 E 16 SE 21
MIXING HGT(FT-AGL/MSL)4860 4870
TRANSPORT WND (MPH) E 20 E 22
VENT RATE (KT-FT) 82620 92530
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-162000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 20
TEMP (24H TREND) 86 (+1) 75 (-3) 86
RH % (24H TREND) 66 (-3) 94 (+6) 66
WIND 20FT/EARLY(MPH) E 18 E 17 E 18
WIND 20FT/LATE(MPH) E 14 E 18 E 16
MIXING HGT(FT-AGL/MSL)3390 3340
TRANSPORT WND (MPH) E 20 E 21
VENT RATE (KT-FT) 57630 60120
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-162000-
ST CROIX-
330 AM AST SAT MAY 16 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30
TEMP (24H TREND) 87 (+1) 75 (-2) 87
RH % (24H TREND) 66 (-2) 94 (+3) 64
WIND 20FT/EARLY(MPH) E 17 E 17 E 17
WIND 20FT/LATE(MPH) E 16 E 17 E 17
MIXING HGT(FT-AGL/MSL)4250 4480
TRANSPORT WND (MPH) E 22 E 20
VENT RATE (KT-FT) 80750 76160
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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